Profile measurement of circulating electrons in a synchrotron by inserting a carbon wire

被引：8

作者：

Obara, Y. ^{[1
]}

Ishikawa, T. ^{[2
]}

Hama, H. ^{[2
]}

Hinode, F. ^{[2
]}

Kanda, H. ^{[3
,5
]}

Kashiwagi, S. ^{[2
]}

Miyabe, M. ^{[2
]}

Muto, T. ^{[2
]}

Ozawa, K. ^{[4
]}

Shimizu, H. ^{[2
]}

Tokiyasu, A. O. ^{[2
]}

机构：

[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[2] Tohoku Univ, Res Ctr Electron Photon Sci ELPH, Sendai, Miyagi 9820826, Japan

[3] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[4] High Energy Accelerator Res Org KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan

[5] Osaka Univ, RCNP, Suita, Osaka 5670047, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2019年 / 922卷

关键词：

Internal radiator; Tagged photon; Electron beam size; Meson photoproduction; PHOTOPRODUCTION; MONITOR; MESON;

D O I：

10.1016/j.nima.2019.01.007

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An internal radiator made of a carbon wire is employed to produce bremsstrahlung-photon beams for meson photoproduction experiments from circulating electrons in a synchrotron at the Research Center for Electron Photon Science, Tohoku University. The horizontal electron-beam size at the radiator location is determined from the decay rate of the resultant photon intensity as a function of the distance between the fixed position of the radiator and the centroid of the electron beam. The horizontal beam size at the radiator location is determined to be 0.74 mm with a statical error less than 0.01 mm for 1.3-GeV circulating electrons. The horizontal correlation between the position and momentum direction of the electron beam is also measured. The horizontal size and correlation are well-reproduced by the design values of the parameters of the synchrotron.

引用

页码：108 / 113

页数：6